Organisational learning within an educational context is a complex and multidimensional process. This paper reports on a study that investigates organisational learning during the process of development of Vanuatu's nationalised English medium secondary school assessment process, a significant educational change in Vanuatu. This qualitative inquiry reviewed and critiqued the organisational learning that resulted from a pilot programme leading to the change, and involved participants from a number of levels within the Vanuatu education system. The study identified several factors that may have hindered the planning process. A revised change management framework for the Vanuatu education system is proposed, as a result of the critique, and recommendations towards improving the implementation of future educational changes in Vanuatu are made. The resulting framework and recommendations may assist other Pacific countries engaged in similar senior assessment nationalisation, and, also contribute more generally to others involved in systemic educational change processes.